// 全局異常捕獲
if (LogLevel.enableLog) {
GlobalExceptionHanlder.getInstance().register(getApplicationContext());
}
package com.utils;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.Thread.UncaughtExceptionHandler;
import java.lang.reflect.Field;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;
import android.os.Environment;
import android.os.Looper;
import com.***.***.R;
import com.utils.logging.LogUtil;
/**
* 全局異常捕獲類
*
* @author Eric.wsd
* @since 2012-5-21
*/
public class GlobalExceptionHanlder implements UncaughtExceptionHandler {
public static String ACTION = null;
// 系統默認的UncaughtException處理類
private Thread.UncaughtExceptionHandler mDefaultHandler;
// GlobalExceptionHanlder實例
private static GlobalExceptionHanlder mHandler;
// 程序的Context對象
private Context mContext;
// 用來存儲設備信息和異常信息
private Map<String, String> infos = new HashMap<String, String>();
// 用於格式化日期,作爲日誌文件名的一部分
private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss", Locale.getDefault());
// 日誌位置
private String logPath = null;
// 異常信息等級
public GlobalExceptionHanlder() {
}
/**
* 註冊異常處理
*
* @param context
*/
public void register(Context context) {
mContext = context;
// 獲取系統默認的UncaughtException處理器
mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
// 設置該GlobalExceptionHanlder爲程序的默認處理器
Thread.setDefaultUncaughtExceptionHandler(this);
ACTION = context.getString(R.string.global_exception_action);
logPath = Environment.getExternalStorageDirectory() + context.getString(R.string.global_exception_sdcard_dir);
}
/** 獲取GlobalExceptionHanlder實例 ,單例模式 */
public static GlobalExceptionHanlder getInstance() {
if (mHandler == null) {
mHandler = new GlobalExceptionHanlder();
}
return mHandler;
}
@Override
public void uncaughtException(Thread thread, Throwable ex) {
// if (!HttpUtils.isNetworkConnected(mContext)) {
// Toast.makeText(mContext, "網絡異常,請檢查網絡設置", Toast.LENGTH_LONG).show();
// }
if (!handleException(ex) && mDefaultHandler != null) {
// 如果用戶沒有處理則讓系統默認的異常處理器來處理
mDefaultHandler.uncaughtException(thread, ex);
} else {
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
LogUtil.e("error : " + e);
}
systemExit();
}
}
/**
* 退出程序
*/
private void systemExit() {
Intent intent = new Intent();
intent.setAction(GlobalExceptionHanlder.ACTION);
android.os.Process.killProcess(android.os.Process.myPid());
System.exit(0);
}
/**
* 檢查SD卡是否可用
*
* @return
*/
public static boolean checkSDCard() {
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))
return true;
else
return false;
}
/**
* 自定義錯誤處理,收集錯誤信息 發送錯誤報告等操作均在此完成.
*
* @param ex
* @return true:如果處理了該異常信息;否則返回false.
*/
private boolean handleException(Throwable ex) {
if (ex == null) {
return true;
}
// 使用Toast來顯示異常信息
new Thread() {
@Override
public void run() {
Looper.prepare();
// 初始化用戶信息
// InfoBuyerStorage.newInstance(mContext).notifyDataSetChanged();
Looper.loop();
}
}.start();
// 收集設備參數信息
collectDeviceInfo(mContext);
boolean isEnable = Boolean.parseBoolean(mContext.getString(R.string.global_exception_enable));
if (isEnable)
saveCrashInfo2File(ex);// 保存日誌文件
// 分類處理異常
return true;
}
/**
* 收集設備參數信息
*
* @param ctx
*/
public void collectDeviceInfo(Context ctx) {
try {
PackageManager pm = ctx.getPackageManager();
PackageInfo pi = pm.getPackageInfo(ctx.getPackageName(), PackageManager.GET_ACTIVITIES);
if (pi != null) {
String versionName = pi.versionName == null ? "null" : pi.versionName;
String versionCode = pi.versionCode + "";
infos.put("versionName", versionName);
infos.put("versionCode", versionCode);
}
} catch (NameNotFoundException e) {
LogUtil.e("an error occured when collect package info" + e);
}
Field[] fields = Build.class.getDeclaredFields();
for (Field field : fields) {
try {
field.setAccessible(true);
infos.put(field.getName(), field.get(null).toString());
LogUtil.d(field.getName() + " : " + field.get(null));
} catch (Exception e) {
LogUtil.e("an error occured when collect crash info" + e);
}
}
}
/**
* 保存錯誤信息到文件中
*
* @param ex
* @return 返回文件名稱,便於將文件傳送到服務器
*/
private String saveCrashInfo2File(Throwable ex) {
StringBuffer sb = new StringBuffer();
for (Map.Entry<String, String> entry : infos.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
sb.append(key + "=" + value + "\n");
}
Writer writer = new StringWriter();
PrintWriter printWriter = new PrintWriter(writer);
ex.printStackTrace(printWriter);
Throwable cause = ex.getCause();
while (cause != null) {
cause.printStackTrace(printWriter);
cause = cause.getCause();
}
printWriter.close();
String result = writer.toString();
sb.append(result);
LogUtil.e(result);// 此處如果改成Log.d();有些手機異常會打印不出來
FileOutputStream fos = null;
try {
long timestamp = System.currentTimeMillis();
String time = formatter.format(new Date());
String fileName = mContext.getString(R.string.app_name) + "-" + time + "-" + timestamp + ".log";
if (checkSDCard()) {
File dir = new File(logPath);
if (!dir.exists()) {
dir.mkdirs();
}
fos = new FileOutputStream(logPath + fileName);
fos.write(sb.toString().getBytes());
}
return fileName;
} catch (Exception e) {
LogUtil.e("an error occured while writing file..." + e);
} finally {
try {
if (fos != null) {
fos.close();
}
} catch (IOException e) {
LogUtil.e("an error occured while close file..." + e);
}
}
return null;
}
/**
* 刪除所有的日誌文件
*/
public void clearAllLogs(final Context ctx) {
if (checkSDCard()) {
try {
File file = new File(logPath);
if (file != null && file.exists()) {
File[] files = file.listFiles();
for (int i = 0; i < files.length; i++) {
files[i].delete();
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
/**
* 異步刪除所有日誌文件
*
* @param ctx
*/
public void asynClearAllLogs(final Context ctx) {
new Thread() {
public void run() {
clearAllLogs(ctx);
}
}.start();
}
}
資源文件如下:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="global_exception_action">com.utils.GlobalExceptionHanlder</string>
<string name="global_exception_sdcard_dir">/dir/log/</string>
<string name="global_exception_enable">true</string>
</resources>